零值函數 的英文怎麼說
中文拼音 [língzhíhánshǔ]
零值函數
英文
zero-valued function-
A rational function is continuous on any finite interval where the denominator is bounded away from zero.
有理函數在任何有限區間上都是連續的,其中分母遠離零值。Nonzero if the function is successful ; otherwise 0
函數成功,返回非零值,否則為0 。By end of 1998, the nominal value of derivatives transactions had happened in the official exchange within 5 years increased from 7. 7 trillion u. s. dollars to 13. 5 trillion u. s. dollars, meanwhile, the nominal value of derivative securities ( otc ) increased from 8. 7 trillion u. s. dollars to 51 trillion u. s. dollars, then, the nominal value of unliquidated derivatives was total about 64 trillion u. s. dollars, and the academic field also emerged frontier science borrowing for the financial science, physics financial science, financial engineering, etc. 1973, black and scholes put forward the differential equation that any derivative securities prices based on any non - dividend paying stock must be satisfied, that is black - scholes differential equation
Jamshidian . f在其1989年的文章中推導出零息債券的期權價格。奧托同樣在其1998年的論文中用統計物理學中的路徑積分方法推導出了基於零息債券為基礎的期權定價模型。本文在這些學者研究成果的基礎上,進行了更深層次的研究,在vasicek隨機模型的基礎上,打破上述學者及著名的black - scholes期權定價模型只能求解證券及其衍生產品價格平均值的限制,對零息債券和基於零息債券的期權的價格求解,並推導證券瞬時價格的分佈函數。The centre of the dark sector soliton evolution equation is derived by means of particle analytical method, equivalent form dark soliton ' s evolution equation in the photorefractive crystal, esceptialy between tow dark soliton ; the potential expression and it ' s numerically calculation is achieved, the conclusion is drawn : when the distance between two dark soliton = 0, its potential function has minimum, shows there is an stead soliton in the photorefractive maternal, and interaction between two dark soliton raches biggest ; when the distance between two dark soliton 5, its potential function is nearly equal zero, shows that the interaction between two lark soliton is very weak, nearly zero
摘要本文從光折變晶體中能得出暗孤子所滿足的演化方程出發,用粒子分析力法得出了兩暗孤子相互作用時,其質心間的距離所滿足的演化方程,並得出了兩暗孤子相互作用勢函數的表達式,得到其數值解,並得出如下結論:當兩暗孤子間距離= 0時,其相互作用勢函數有最小值,表示在光折變晶體中有穩定的暗孤子對,並且相互作用達到最大;當兩暗孤子距離5時,其相互作用勢函數幾乎為零,表示兩暗孤子間相互作用很弱,幾乎為零。We think that the main contributions of the book is in two aspects : one is the revolution of some concepts such as utility theory, aximatization of game, extended game ; the other is the breaking through in zero - sum two - person games centered on minimax and corporation game centered on characteristic function. this was, in fact, the development and extension of von neumann ' s classic game paper of 1928. our research shows that these contributions were a pure new theoretical creation, rather than an
認為《博弈論與經濟行為》的主要貢獻有二個方面:一個方面是在效用理論、博弈的公理化、博弈的擴展形式等等概念上的創新,另一方面是在以極小極大值定理為中心的三人零和博弈理論和以特徵函數為中心的合作博弈理論上的創新,這些實際上主要是馮?諾伊曼對其1928年的經典博弈論文章的理論框架的發展和延伸An argument at which the value of a function vanishes
(坐標的)起點函數自變量的值等於零The adaptation processing includes linear prediction coefficient adaptation and adaptation of quantization step size for residual signals. based on g. 726, we adopt a huffman coder to make use of probability statistic of bit cascade covering n ( n 1 ) samples generated from adpcm, in order to further reduce the bit rate. ng is lossless entropy coding, the speech quality of our improved algorithm should be same as that of g. 726 standard
我們的研究和改進工作包括:研究最優非均勻自適應量化器,及其自適應演算法;研究波形預測函數,以及函數零點、極點的自適應演算法;基於每n ( n 1 )個樣本所對應符號的概率統計,對預測殘差量化值再進行huffman編碼,進一步降低比特率。By choosing some appropriate exponential weight functions we prove that the essential spectra and the eigenvalues ( except the simple zero eigenvalue ) have negative real parts, thus we get the locally asymptotically exponential stability of travelling waves ( al ) and ( a2 ) in some weighted spaces
通過選用合適的權函數,我們證得在加權空間線性化運算元的本質譜和除簡單特徵值零以外的特徵值均具有負實部。因此,我們得到行波( a1 ) , ( a2 )在加權的l ~ 2 ( r )空間的局部漸近指數穩定。The research paper is based on the the latest softwares of the managing inventory, its research subject is about simulating the most appropriate inventory quantity and ordering quantity by statisticing the probability of the random require quantity. its purpose is to provide the relied basement for determining the most appropriate inventory quantity and ordering quantity, the deterring policy quality will be raised, so the damage caused by unfit inventory quantity and the benefit of the entrerpreneur will be raised. the research method is by building the inventory management information system, the system includes automated management of parts entering and going out the datasbase. requesting the records of parts entering and going out the datasbase and displaying the sygonal when the inventory quantity is short out. computer calculating the fix period remaining, requesting remaining at any time and displaying if goods need ordering, all the partsof certain a product going out of basement and at the same time checking if the storaging quantity is enough. then simulating the most appropriate inventory quantity and ordering quantity simulating method is as follows : statisticing the random required quantity. calculating the probability, standing for the values with data range producing random data by function accordingly calculating the random required quantity. thenext step is simulating all the projects after pressing in the simulating conditions. finally selecting the best
本文通過分析國內外關于庫存管理軟體的發展情況,提出在線統計貨物出庫情況的基礎上利用模擬方法確定最優存儲方案,其目的是為制定合理的貨物安全庫存量和訂貨量提供可靠的依據,提高企業管理人員的決策質量,從而減小資金的佔用和缺貨損失,提高企業的經濟效益。通過研製庫存管理信息系統使庫存信息管理自動化,也就是實現貨物入出庫管理計算機管理、自動查詢貨物入出庫情況並在缺貨時給予提示、使用計算機貨物余額定期結算、貨物余額實時查詢並顯示是否需要訂貨、裝配出庫管理使得只要輸入需要裝配產品代號和數量,組成它的所有零件就會自動檢庫和出庫。然後對安全庫存量和訂貨量進行模擬,模擬方法是首先自動統計貨物在過去某一段時間內的需求量,計算出概率,用隨機數的范圍表示其概率數值的大小,利用隨機函數產生隨機數、從而間接的產生隨機需求量,給定模擬天數和其他模擬條件模擬各種方案,從眾多的存儲方案中找出最優存儲方案。When on is specified, errors or warnings are issued when conditions such as divide - by - zero occur or null values appear in aggregate functions
當指定為on時,在出現如除以零或聚合函數中出現空值這類情形時,將發出錯誤或警告。Constructing an entire function a ; ( a ), the zeros of which are the eigenvalue of dirac eigenvalue problem with general two points " linear algebra boundary conditions
構造了一個整函數( ) ,其零點集合與具有一般兩點邊界條件的dirac特徵值問題的特徵值集合重合。Under the condition of asymmetric distribution of npv probability, the probability of npv less than 0 can more accurately describe the risk of investment retun then the probability of npv less than 0 that concessionaire may accepted determines the condition satisfied by the economic parameters of concession contracts. with the premises of expected objective value of each parameter fixed by the designers of concession contracts and the weighted value of this parameter, an optimal objectiv
特許權人可以接受的npv小於零的概率決定了特許權合約經濟參數需要滿足的條件,在特許權合約設計者可以對每個參數確定一個初始的期望目標值和該參數的權重條件下,本文通過構造一個優化目標函數,解決了合約經濟參數的優化選擇問題。The author makes a stabilized and zero mean treatment of the statistic data on the per capita annual net income of henan farmers between 1978 and 2005, and using the property of the autocorrelation function and partial autocorrelation function of time sequence, establishes the model appropriate for the data
摘要筆者根據河南省1978年2005年的農民人均純收入統計數據,將這些數據進行平穩化、零均值化處理,並利用時間序列的自相關函數,偏自相關函數的性質,確認數據所適合的模型。In chapter two, we consider the non - ruin probability. in section one. by adapting the techniques in [ 5 ], we obtain the integral expression of non - ruin probability in section two, firstly, we prove the twice continuous differentiability of non - ruin probability, then we obtain the integral - differential equation satisfied by ( u ) in section three, we introduce the auxiliary function e ( u ). as u = 0, gives 0
類似於[ 5 ]中的方法得到不破產概率滿足的積分表達式在第二節中,首先證明了不破產概率的二次連續可微性,然後得到不破產概率滿足的積分-微分方程由於不破產概率零初值時的值不確定,我們在第三節中引入了輔助函數e _ ( u ) ,使得u 0時, e _ ( 0 ) 0 。The astringency, error and stability of the numerical method are researched. zero matrix method, constant matrix method, and jacobian matrix method are constructed in order to improve numerical precision and efficiency. the steps for calculating matrix exponential function using pade approach method are given out
研究了所提西安理工大學博士學位論文數值計算方法的誤差、穩定性、收斂性等數學性質,在計算精度和計算效率兩方面提出了一些改進措施,構造了零矩陣法、常數矩陣法、雅可比矩陣法等計算格式,給出了利川pade逼近計算矩陣指數函數的求解步驟。Zeros of a function
函數零值Data pre - processing, digital filter with window function, and lagrange equations smooth curve are programmed by software in the thesis. the aircraft power supply parameters are designed by software in details
完成採集數據的預處理、 fft變換、加窗函數數字濾波的實現、過零測頻法、插值擬合曲線、飛機供電系統參數數據處理的編程。According to the principle i. e. the investor obtains only the expected minimum benefit when npv is zero, based on the analysis of various factors effecting the cash flow of gas investment, the parameters related with the reserves are expressed as the function of reserve scale, and the mathematical model is developed to determine the gas minimum economic resources taking the resources as a variable and given npv is zero, which pro vides a decision making method for gas exploration invest merit
根據投資凈現值為零時投資者只獲得最低期望收益的原理,在分析影響天然氣投資現金流量各因素的基礎上,將與儲量相關的參數表示為儲量規模的函數,並以儲量規模作為變數通過令凈現值為零得到確定天然氣最低經濟儲量規模的數學模型,從而為天然氣勘探投資提供一種決策方法。Our main work is as following : ( 1 ) research many methods to estimate blur parameter, carefully analyze the blur function of straight line motion with constant velocity, put forward a method to estimate blur parameters by zero value points according to the blurred images " spectrum
主要工作如下: ( 1 )研究了多種估計退化參數的方法,並仔細分析了勻速直線運動模糊圖像的退化函數,根據其頻譜的特點提出了用零值點方法來估計退化參數。The objective function is defined as the summation of normalized zero - delay crosscorrelation of all common - image gathers
目標函數定義為各共成像點道集零延遲歸一化互相關值之和。分享友人